Does getting your tubes tied cause weight gain?
Tubal ligation is the worst thing to do - they don't tell you about tubal ligation syndrome because they are worried about malpractice.
Getting your tubes tied is probably not the underlying reason most peoples periods would be out of whack. In most cases it would have more to do with stopping birth control. I had mine done 5 years ago and have had no side effects whatsoever except maybe the first few months while my body adjusted. My periods are if anything shorter and more regular since. Lasting 2-3 days tops and around 27-28 days in between.